1. Races

Huge Giant Crab

Huge Beast, Unaligned
AC 15 (natural armor)
Initiative +2 (12)
HP 161 (14d12 + 70)
Speed 30 ft., Swim 30 ft.
mod
save
mod
save
mod
save
Str
20
+5
+5
Dex
15
+2
+2
Con
20
+5
+5
Int
1
-5
-5
Wis
9
-1
-1
Cha
3
-4
-4
Skills Stealth +5
Immunities CharmedFrightenedParalyzed

Senses Blindsight 30 ft., Passive Perception 9

Languages —
CR 8 (XP 3,900; PB +3) 

Traits

Amphibious. The crab can breathe air and water.

Banded Claw. On one of its claws, the crab wears a rune-covered copper band that makes it immune to being Charmed, Frightened, and Paralyzed. The copper band is worthless as a treasure, as the magic is keyed to this crab.

Actions

Claw. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 27 (4d10 + 5) bludgeoning damage, and the target is Grappled, escape DC 14. The crab has two claws, each of which can grapple only one target.

Source: TftYP, page 103.